GB1062907A - Improvements relating to the control of data tape movement - Google Patents
Improvements relating to the control of data tape movementInfo
- Publication number
- GB1062907A GB1062907A GB2975864A GB2975864A GB1062907A GB 1062907 A GB1062907 A GB 1062907A GB 2975864 A GB2975864 A GB 2975864A GB 2975864 A GB2975864 A GB 2975864A GB 1062907 A GB1062907 A GB 1062907A
- Authority
- GB
- United Kingdom
- Prior art keywords
- read
- digit
- groups
- digit groups
- series
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06018—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking one-dimensional coding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K2019/06215—Aspects not covered by other subgroups
- G06K2019/06271—Relief-type marking
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Digital Magnetic Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
1,062,907. Statistical apparatus. STANDARD TELEPHONES & CABLES Ltd. July 24, 1964, No. 29758/64. Heading G4C and G4M. Each of a series of groups of digits is recorded together with one of a series of regularly repeated characteristics, and on read-out of the digit groups, means is responsive to an interruption or disorder in the regular series of characteristics to indicate a malfunction in the read-out process. The digit groups may be recorded, for example, on paper or magnetic tape, or in a ferrite core store. The Figure shows a tape in which each digit group is punched in tracks 3-7 in 2-out-of-5 code, and alternate digit groups have an additional hole punched in track 8. In reading such a tape, a bi-stable circuit is switched between its two states as successive digit groups are read, and its state is compared with the output of a device sensing track 8, an unequal comparison signifying a read-out error, due for example to one digit group being omitted or read twice. An alternative method of detecting read-out errors is to record alternate odd and even parity bits with successive digit groups, and to check that successive digit groups read from the store have opposite parity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2975864A GB1062907A (en) | 1964-07-24 | 1964-07-24 | Improvements relating to the control of data tape movement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2975864A GB1062907A (en) | 1964-07-24 | 1964-07-24 | Improvements relating to the control of data tape movement |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1062907A true GB1062907A (en) | 1967-03-22 |
Family
ID=10296711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2975864A Expired GB1062907A (en) | 1964-07-24 | 1964-07-24 | Improvements relating to the control of data tape movement |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1062907A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0152484A1 (en) * | 1982-10-16 | 1985-08-28 | Fanuc Ltd. | Data input/output device |
US4677543A (en) * | 1982-10-15 | 1987-06-30 | Fanuc Ltd. | Transportable and detachable data input/output unit providing automatic character insertion or deletion |
-
1964
- 1964-07-24 GB GB2975864A patent/GB1062907A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677543A (en) * | 1982-10-15 | 1987-06-30 | Fanuc Ltd. | Transportable and detachable data input/output unit providing automatic character insertion or deletion |
EP0152484A1 (en) * | 1982-10-16 | 1985-08-28 | Fanuc Ltd. | Data input/output device |
EP0152484A4 (en) * | 1982-10-16 | 1985-10-17 | Fanuc Ltd | Data input/output device. |
US4636937A (en) * | 1982-10-16 | 1987-01-13 | Fanuc Ltd. | Data input/output unit |
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